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Can you extract hot air from a radiator?

Can you extract hot air from a radiator?

K
KrozenFire
Member
124
12-26-2018, 01:55 AM
#1
Hey Guys,
It's been a while since I last shared here, and I lost my original account.
Right now I'm working on an Inwin 805i case with custom water cooling. I was about to mount the fans to the radiator but faced a problem.
Should I put the radiator fans inside the case, drawing air in from the inside through the radiator and out the front? Or better yet, install them on the opposite side of the radiator, pulling air in from outside the case through the radiator into the interior?
It seems the first option looks more visually appealing, but I'm worried it might affect performance. The current setup relies heavily on that single 360mm radiator at the front...
Here are the links for reference:
Choice 1: https://gyazo.com/b1154fb3dac37b53d42fc989b51352d8
Choice 2: https://gyazo.com/5ba61fa73e06d79be5555a50a07e4c61
Also, where exactly does the exhaust go or how does air come in when the front is blocked?
K
KrozenFire
12-26-2018, 01:55 AM #1

Hey Guys,
It's been a while since I last shared here, and I lost my original account.
Right now I'm working on an Inwin 805i case with custom water cooling. I was about to mount the fans to the radiator but faced a problem.
Should I put the radiator fans inside the case, drawing air in from the inside through the radiator and out the front? Or better yet, install them on the opposite side of the radiator, pulling air in from outside the case through the radiator into the interior?
It seems the first option looks more visually appealing, but I'm worried it might affect performance. The current setup relies heavily on that single 360mm radiator at the front...
Here are the links for reference:
Choice 1: https://gyazo.com/b1154fb3dac37b53d42fc989b51352d8
Choice 2: https://gyazo.com/5ba61fa73e06d79be5555a50a07e4c61
Also, where exactly does the exhaust go or how does air come in when the front is blocked?

J
JoaoPrette
Junior Member
10
12-26-2018, 03:20 AM
#2
■ warm air released by push fans, passed through the radiator, then drawn out by pull fans. 805 will feel a couple of degrees cooler when using a good intake instead of the usual rear exhaust. Follow the arrow and direct the air downward. If your CPU waterblock is full, metal will also help with the intake airflow.
■ fresh air drawn in by push fan, routed through the radiator, then pulled out by pull fans. A GPU blower cooler like GTX founder edition gains from the air pushed by pull fans.
Because you have a CPU waterblock, the main heat comes from the GPU. For example, an EVGA ACX or Gigabyte Windforce works best with blown air. When using two VGA cards, the second one will cool more effectively than the first—try cooling hot tea with sucking air.
J
JoaoPrette
12-26-2018, 03:20 AM #2

■ warm air released by push fans, passed through the radiator, then drawn out by pull fans. 805 will feel a couple of degrees cooler when using a good intake instead of the usual rear exhaust. Follow the arrow and direct the air downward. If your CPU waterblock is full, metal will also help with the intake airflow.
■ fresh air drawn in by push fan, routed through the radiator, then pulled out by pull fans. A GPU blower cooler like GTX founder edition gains from the air pushed by pull fans.
Because you have a CPU waterblock, the main heat comes from the GPU. For example, an EVGA ACX or Gigabyte Windforce works best with blown air. When using two VGA cards, the second one will cool more effectively than the first—try cooling hot tea with sucking air.

X
Xx_PoloMAN_xX
Junior Member
44
12-26-2018, 05:58 AM
#3
The issue lies with the standard configuration, where fans are directing air through the radiator and escaping from the rear or upper areas. Cold air enters at an angle from the exhaust.
X
Xx_PoloMAN_xX
12-26-2018, 05:58 AM #3

The issue lies with the standard configuration, where fans are directing air through the radiator and escaping from the rear or upper areas. Cold air enters at an angle from the exhaust.

E
EPIC_GT
Member
219
12-29-2018, 12:21 PM
#4
Air intake = front, bottom, sides.
Air exhaust = back, top.
There's no definate right or wrong when it comes to where to put fans and radiators (as long as you keep to the abovementioned standards). Whichever choice you make there's pros and cons. There's billions of threads and videos talking about this issue that's tearing the internet apart. The only thing we all can agree on is that you want as much air going out that's going in, or as close as possible.
Google for "positive vs negative air pressure". I'm sorry for the world you're delving into.
E
EPIC_GT
12-29-2018, 12:21 PM #4

Air intake = front, bottom, sides.
Air exhaust = back, top.
There's no definate right or wrong when it comes to where to put fans and radiators (as long as you keep to the abovementioned standards). Whichever choice you make there's pros and cons. There's billions of threads and videos talking about this issue that's tearing the internet apart. The only thing we all can agree on is that you want as much air going out that's going in, or as close as possible.
Google for "positive vs negative air pressure". I'm sorry for the world you're delving into.

D
DSG_Flynx
Junior Member
44
12-29-2018, 10:08 PM
#5
■ warm air released by push fans, passed through the radiator, drawn out by pull fans. 805 will feel a couple of degrees cooler with a better intake instead of the usual rear exhaust. Follow the arrow and direct it downward. If your CPU waterblock is full, metal will also help with the intake airflow.
■ fresh air drawn in by push fan, through the radiator, pulled out by pull fans. A GPU blower cooler like GTX founder edition gains from the air pushed by pull fans.
Because you have a CPU waterblock, the main heat comes from the GPU. For example, an EVGA ACX or Gigabyte Windforce works best with blown air. When using two VGA cards, the second one will cool more effectively than the first—try cooling hot tea with sucking air.
D
DSG_Flynx
12-29-2018, 10:08 PM #5

■ warm air released by push fans, passed through the radiator, drawn out by pull fans. 805 will feel a couple of degrees cooler with a better intake instead of the usual rear exhaust. Follow the arrow and direct it downward. If your CPU waterblock is full, metal will also help with the intake airflow.
■ fresh air drawn in by push fan, through the radiator, pulled out by pull fans. A GPU blower cooler like GTX founder edition gains from the air pushed by pull fans.
Because you have a CPU waterblock, the main heat comes from the GPU. For example, an EVGA ACX or Gigabyte Windforce works best with blown air. When using two VGA cards, the second one will cool more effectively than the first—try cooling hot tea with sucking air.